Mechanism of Microscopic Fracture of Typical Shell Steel under Impact Loading

Table 3

Projectile velocities corresponding to different target plates.

Group number					Average velocity of projectiles	Relative deviation of minimum and maximum velocities (%)
	I	II	III	IV
A	973.42	1000	996.6	1006.87	994.22	3.32
B	785.52	763.02	759.07	771.05	769.67	3.37
C	393.82	412.68	417.97	416.79	410.31	5.78

Note: in Table 2, “A” means the first group of tests, and the velocity of the projectile was 1000 m/s. “B” is the second group of tests, with a target velocity of 700 m/s. “C” is the third group, with a target velocity of 400 m/s.